A wolf had been hurt in a fight with a bear. He was unable to move and could not satisfy his hunger and thirst. A sheep passed by near his hiding place, and the wolf called to him. "Please fetch me a drink of water," He begged, "That might give me strength enough so I can get me some solid food.""Solid food!" Said the sheep. "That means me, I suppose. if I should bring you a drink, it would only serve to wash me down your throat. don't talk to me about a drink!" 
A knave's hypocrisy is easily seen through. 